Theoretical model development and demonstration of cultivation technology by defoliation to improve water use efficiency in dryland agriculture
| Project/Area Number |
19780013
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Crop science/Weed science
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| Research Institution | Tottori University |
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Principal Investigator |
TSUJI Wataru Tottori University, 乾燥地研究センター, 助教 (60423258)
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| Project Period (FY) |
2007 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥600,000)
Fiscal Year 2009: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2008: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2007: ¥1,300,000 (Direct Cost: ¥1,300,000)
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| Keywords | 乾燥地農業 / 水資源 / 乾燥ストレス / 食用作物 / 切葉 / 子実収量 / 水利用効率 / 国際貢献 |
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| Research Abstract |
To tackle water and food deficit in drylands, I devised agricultural practice to enhance water use efficiency with conserving water resources and increasing grain yield of crops by defoliation. Pot and field experiments were conducted in Japan and overseas to demonstrate the effects of defoliation and elucidate its theory. I found that defoliation in booting stage under drought stress can increase grain yield of sorghum. This increment may attribute to mitigation of sterility, maintenance of photosynthetic rate through high stomatal conductance, and allocation increase of assimilates to spike.
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Report
(4 results)
Research Products
(7 results)
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[Presentation] Behavior of stomatal conductance and water use of a defoliated sorghum plant under water deficit condition.2008
Author(s)
Tsuji, W., Araki, H., Sekiya, N., Kashiwagi, J., Krishnamurthy L., Muranaka, S.
Organizer
日本作物学会第225回講演会
Place of Presentation
農林水産省農林水産技術会議事務局筑波事務所
Related Report
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